Pile-head protector



Aug. 2, 19 27. 1,637,627

w. w. WANNAMAKER, JR

FILE HEAD PROTECTOR Filed March 1926 l I 11/ i I i1 1}" InventorPatented Aug. 2, 19 27.

UNITED. STATES PATENT OFFICE.

. FILE-HEAD PROTECTOR.

Application fileiliarch 9, 1926. Serial 0. 93,458. g

The present invention relates to a pile head protector, and has for itsobjectto pro- I vide a cheap, convenient, and durable means forprotecting the heads of wooden piles I from moisture and unequal bearingand other factors which tend to cause decay, at, near or through thehead.

With the above and numerous other objects in view as will appear as thedescripii for supporting the cap. C. The letters D denote the driftpins. My improved pile head protectors are designated generally by theletters A. Referring particularly to one of the protectors, it will beseen that the numeral 5 designates the top plate of a nonelastic shieldhaving a frusto-conical marginal flange 6 depending therefrom- Thenumeral 7 denotes the inner cushion of elastic material which is causedto adhere to the bottom surface of the shield or outer casing by acoating of bituminous material 8. The outer casing or shield is made ofpressed metal, especially galvanized iron, although it may be made ofanymetal or combina- 40 tions of metals desired. I This outer casing isshaped roughly like an inverted pie plate. The smaller inside diameteris equal or greater than that of the pile it protects. A number ofvarious sizes is used so thatIany size pile maybe capped Withoutprotruding excessively. The purpose of the outer casing or shield is topre: vent moisture from reaching the cushion 7 and the pile headproperly, because moisture which gets into the cracks and pores in theheadaccelerates decay. o

' .The inner cushion 7 is made up of one or more circularlayersof tarpaper or other be more easily handled and installed, and

Figure 1 is a fragmentary view showing.

same preservative used in the treatment of 1 placing the protectorthereon.

painted or not, as may be a ment of parts may be resorted to without de-Iclaim as new-is:

similar material- This cushion is stuck to 66 the inside of the outercasing by pitch, asphaltic cement, or other suitable cementing material.The cushion being stuck to the. casing as a unit, allows the protectorto I also tendsto preserve the cushion. The purpose of the inner cushionis to distribute the load over minor irregularities in the pile headproper, and also to assist in rendering the pile head propermoisture-proof.

The manner of using the pile head pro-- tector is as follows After'thepile is driven in place and sawed ofl' ready to, be capped, it iscovered with the pile protector. The cap C is then put in place. A holefor the drift pins D is then bored through the cap, but not through therotector as that might injure the bit or rill. The drift pin is then,driven through the hole in the cap, through the protector, and into thepile as usual. Before placing the protector on a treated pile, the headshould be treated with the the pile. For instance, a creosoted pileshould'be' treated with an application of hot creosote followed by taror pitch before This treatment will make a better joint, and isdesirable but not necessary, in order tomake profitable use of theprotector.

The present embodiment of the invention has been disclosed in detailsince in actual practice it attains the features of advantage enumeratedas desirable in the statement of the invention'and the abovedescription.

It will be apparent, however, that changes inthe details ofconstruction, in the materials, and in the combination andarrangeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificing any of its advantages.

Having thus described my invention, what A pile head protector includingan outer casing of metal comprising a circular body having a marginaldepending frusto-conical flange, and an elastic cushion] within thecasing and cemented thereto.

i In testimony whereof I aflix my signature.

' WILLIAM W. 'WANNAMAKER, JR.

